Divide and Conquer

 is a side quest in Tyranny. It is given by Rift-Dig under certain conditions. Known factors include:
 * the Young Fatebinder having the Hunter background;
 * becoming Prima of the Stonestalkers;

If you are on the Disfavored path, you can get and complete the quest before speaking with Hundred-Blood.

Synopsis
The Beastman Rift-Dig claimed that Disfavored soldiers have been attacking settlers in Graystone Valley. You found it odd that the Disfavored would behave in this manner and vowed to investigate the matter.

Walkthrough

 * Travel to Graystone Valley to search for signs of the Disfavored attackers. Search the area for any Disfavored and question them.
 * Talk to Brillen. Then, head north to find the perpetrators: Raven, Prattle, and Severed Sophus.
 * You can kill them all, or use Athletics 62 to take them to Iron Hearth... Or even let them go, for a bribe. Of course, the first two options result in having to execute them.. The latter lets them go to continue their operations.
 * The bribing option is not available on the Disfavored path; in other paths, you can always choose to kill them after taking the bribe.